Lower Case -- uPPER cASE: It's All the Same

A thread at Cre8asite forums named uppercase - lowercase asks the question if it matters to search engines in the body copy, title, url and so on.

Bottom line is that it does not matter. Titles should look nice, headers should look nice and the URLs should look nice to the end user. But I don't think search engines will care much if you didn't upper case the name of your cat.